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SFP 1.25G Tx1490/Rx1550 120Km LC Transceiver

Gearlink’s GCS9L0C45 SFP china transceiveris compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1490nm DFB laser (the 1550nm DFB laser), and the APD/TIA. The module data link up to 120km in 9/125um Single-mode fiber.

This transceiver meets the Small Form Pluggable (SFP) industry-standard package utilizing an integral LC-Bi-directional and bidi fiberoptical interface connector. An enhanced Digital Diagnostic Monitoring Interface compliant with SFF-8472 has been incorporated into the transceiver. It allows real-time access to the transceiver operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power, and transceiver supply voltage by reading a built-in memory with an I²C interface.

The optical output can be disabled by an LVTTL logic high-level input of Tx Disable, and the system also can disable the module via I²C. Tx Fault is provided to indicate the degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of the receiver or the link status with the partner. The system can also get the LOS (or Link)/Disable/Fault information via I²C register access.

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Technical Specification Of SFP 1.25G Tx1490/Rx1550 120Km LC Transceiver

General Specifications

Parameter

Symbol

Min

Max

Unit

Bit Rate

BR

Gb/sec

Max

120

km

Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Unit

Storage Temperature

TS

-40

85

ºC

Storage Ambient Humidity

HA

5

95

%

Power Supply Voltage

VCC

-0.5

4

V

Signal Input Voltage

-0.3

Vcc+0.3

V

Receiver Damage Threshold

+3

dBm

Lead Soldering Temperature/Time

Told

260/10

ºC/sec

Note 1

Lead Soldering Temperature/Time

Told

360/10

ºC/sec

Note 2



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